I know there is a thread on here about how to calc gear ratios based on trans and rears and RPM's but I can't find it. Little help please.
I have a 220 4r trans in my '84 Elco, low power motor and a 2.73 rear. I can't get this rig into 4th gear (maybe if I hit 120 mph or something). I'm looking to upgrade the rear to a 3.42 but not sure if it will do the trick.
This car is a daily driver, not a hot rod or weekend warrior. It has the original 14" wheels for now but I'll upgrade to 15" eventually. Gas milage is a concern. If I can't get it into 4th gear on the highway its just wasting gas. I appreciate the help. Thanks in advance.
I have a 220 4r trans in my '84 Elco, low power motor and a 2.73 rear. I can't get this rig into 4th gear (maybe if I hit 120 mph or something). I'm looking to upgrade the rear to a 3.42 but not sure if it will do the trick.
This car is a daily driver, not a hot rod or weekend warrior. It has the original 14" wheels for now but I'll upgrade to 15" eventually. Gas milage is a concern. If I can't get it into 4th gear on the highway its just wasting gas. I appreciate the help. Thanks in advance.